Moistop Ultra vapor retarders provide a superior level of moisture protection while withstanding the toughest jobsite abuse. These ASTM E1745-rated virgin resin vapor retarders prevent unwanted vapor migration through concrete slabs, protecting against mold and other moisture-related problems. Fortifiber offers a versatile line of premium polyolefin vapor retarders (Ultra 15, 10 and 6) for commercial and residential applications. These products are engineered to resist common issues:
soil bacteria, chemicals and pollutants
punctures and tears
hot and cold temperatures
Square Footage Calculator
Use this handy calculator to estimate the number of rolls you’ll need for your project. Please understand that your actual requirements may vary from the calculation based on your specific project details and lap allowances.